High-temperature age-hardening behavior of Al–Mg–Si alloys with varying Sn contents

Lu, Gang; Sun, Bo; Wang, Jianjun; Liu, Yujie; Liu, Chunming

doi:10.1016/j.jmrt.2021.07.122

Cited by 21 publications

(5 citation statements)

References 56 publications

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“…According to Lu et al [28] the refining effect of Sn addition on the precipitate microstructure derived from the increased homogenous precipitate nucleation rate. Furthermore, incorporating Sn into Al-Zn-Mg as a solute decreases the melting point of liquid phase at the interface, causing a reduction in the solidification rate.…”

Section: Resultsmentioning

confidence: 99%

The role of Sn on microstructure, wear and corrosion properties of Al-5Zn-2.5Mg-1.6Cu-xSn alloy

Sadawy

Metwally

El-Aziz

et al. 2022

Mater. Res. Express

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In the present investigation, Al-5Zn-2.5Mg - 1.6Cu -xSn (x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 wt. %) alloys were fabricated using melting and casting technique. The microstructures of the alloys were studied using optical, scanning electronic microscope/EDS and X-ray diffraction. The corrosion behaviour was performed using electrochemical measurements and immersion tests while the wear behaviour was carried out by pin-on-disc technique. The findings revealed that incorporating Sn to the Al-5Zn-2.5Mg alloy improved its corrosion and wear resistance due to refining the grains. The corrosion potentials shifted from -884 to -943,-955, -996,-1008 and -1012 mV (Ag / AgCl), while the coefficient of friction declined from 0.69 to 0.62 , 0.51 , 0.34, 0.29 and 0.22 with increment of Sn content from 0.0 to 0.2, 0.4. 0.6, 0.8 and 1.0 wt%, respectively. On the other hand, the results illustrated that the wear rate diminished from 4.42 *10 -3 to 1.47 * 10 -3 (mm3/Nm) with increasing Sn from 0.0 to 1.0 wt%. Furthermore, the findings showed that increment of Sn content stimulated the uniform corrosion on the surface of alloys.

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Section: Resultsmentioning

confidence: 99%

The role of Sn on microstructure, wear and corrosion properties of Al-5Zn-2.5Mg-1.6Cu-xSn alloy

Sadawy

Metwally

El-Aziz

et al. 2022

Mater. Res. Express

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“…2, some TEM observations were carried out. [43,[45][46][47][48][49][50]. High Resolution TEM (HRTEM) images of these precipitates (Figs.…”

Section: Influence Of Hydrogen On Precipitate Hardeningmentioning

confidence: 99%

Influence of hydrogen vacancy interactions on natural and artificial ageing of an AlMgSi alloy

Hachet

Sauvage

2022

Journal of Alloys and Compounds

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“…In recent years, the strengthening effects of Sn have been found in various wrought and cast Al alloys [18][19][20][21][22][23][24][25]. The mechanism has been revealed by the work of Elsayed et al [25] on a model Al-0.025 at.% Sn cast alloy.…”

Section: Introductionmentioning

confidence: 98%

“…Similarly, in the cast Al-7 wt.% Si-7 wt.% Cu alloy studied by Akopyan [24] et al, the addition of 0.2 wt.% Sn was found to promote the precipitation of θ and θ during heat treatments and stabilize the precipitates. The mechanism is also active in wrought Al-Mg-Si-Sn alloys [18]. The research on the effect of Sn addition to cast Al-Si alloys can also provide a basis for designing composites of these alloys [26].…”

Section: Introductionmentioning

confidence: 99%

The Fatal Defects in Cast Al-Si Alloys Due to Sn Addition

Xiao,

Wang,

Deng

et al. 2023

Materials

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Cast defects are common in cast alloys and they are difficult to eliminate without deformation. They strongly degrade the mechanical properties of cast alloys. The addition of some elements can affect the number of cast defects. In this work, the deleterious effect of Sn addition on the mechanical properties of Al-Si alloys has been investigated via 3D-computed tomography, SEM and TEM. Amorphous Sn oxides were found near the alumina film or formed enclosures with alumina film. The melt containing high Sn content was trapped by enclosures, causing more shrinkage pores during solidification. Cracks likely initiated and expanded along these pores and brittle amorphous Sn oxides, deteriorating the mechanical properties. This work suggests not adding Sn to various Al alloys when used in a cast state.

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High-temperature age-hardening behavior of Al–Mg–Si alloys with varying Sn contents

Cited by 21 publications

References 56 publications

The role of Sn on microstructure, wear and corrosion properties of Al-5Zn-2.5Mg-1.6Cu-xSn alloy

The role of Sn on microstructure, wear and corrosion properties of Al-5Zn-2.5Mg-1.6Cu-xSn alloy

Influence of hydrogen vacancy interactions on natural and artificial ageing of an AlMgSi alloy

The Fatal Defects in Cast Al-Si Alloys Due to Sn Addition

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